.box>.list,
.content>.left,
.content>.right {
    box-sizing: border-box
}

.middle {
    height: 100%;
    background-color: #fff;
    padding: 20px 0
}

.content {
    height: 600px;
    margin: 20px auto;
    display: flex
}

.box>.show {
    width: 450px;
    height: 450px;
    border-bottom: 1px solid #333;
    position: relative
}

.box>.show>.mask {
    width: 200px;
    height: 200px;
    background-color: #ff0;
    opacity: .5;
    position: absolute;
    left: 30px;
    top: 40px;
    pointer-events: none
}

.box>.show>img {
    width: 100%;
    height: 100%;
    display: block
}

.box>.list {
    flex: 1;
    padding: 20px;
    display: flex;
    align-items: center
}

.box>.list>img {
    width: 54px;
    height: 54px;
    border: 1px solid #333;
    margin-right: 15px;
    cursor: pointer
}

.box>.list>img.active {
    border-color: orange
}

.box>.enlarge {
    width: 400px;
    height: 400px;
    position: absolute;
    left: 50%;
    top: 20%;
    overflow: hidden;
    display: none
}

.box>.enlarge>img {
    display: block;
    width: 800px;
    height: 800px;
    position: absolute;
    left: 0;
    top: 0
}

.content>.left {
    width: 453px;
    height: 550px;
    border: 1px solid #333
}

.content>.right {
    flex: 1;
    margin-left: 15px;
    display: flex;
    justify-content: space-around;
    flex-direction: column;
    padding: 10px
}

.content>.right>.title {
    font-size: 30px;
    font-weight: 700
}

.content>.right>.price {
    color: red;
    font-size: 40px
}

.content>.right>button {
    padding: 12px;
    border: 1px solid #bc8f8f;
    border-radius: 10px;
    background-color: #e08b6c;
    font-size: 20px
}

.content>.right>.size {
    display: flex
}

.content>.right>.size>span {
    border: 1px solid #333;
    border-right: none;
    cursor: pointer;
    background-color: #fff;
    padding: 5px 10px
}

.content>.right>.size>span:first-child {
    border-radius: 5px 0 0 5px
}

.content>.right>.size>span:last-child {
    border-right: 1px solid #333;
    border-radius: 0 5px 5px 0
}